Ultimately, it’s up to you to figure out if you can trust an asset: StellarX can’t vouch for anything offered on the Stellar network, and investing in crypto is inherently risky. All information we display about tokens and issuers is publicly available, and much of it is self-reported. That is, an issuer submits information to the network without any third-party verification. Any "deal" that looks to good to be true almost certainly is!
Do your own research, spend some time looking at trading volume and history, and think about whether or not the trade you're imagining makes sense.
When you do select a token to trade, you will see the issuer URL on the top bar, which will take you to the issuer’s official website. That’s a good place read up on the issuer and their offering.
The issuer public key next to the URL links directly to the asset entry at Stellar.expert, a Stellar block explorer. Generally, Stellar.expert gives good information, but they may have bugs or downtime, so make sure to also look up the public key for any token or issuer you're interested in another explorer to be sure.